Valve Stem Purge Channels for Cleaning Inaccessible Components
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Solution Overview
Problem
Existing steam purge systems for fluid control valves are inadequate in cleaning inaccessible components due to limited access and space, leading to residue accumulation and performance issues.
Innovation Solution
The design incorporates channels and apertures in valve components such as stems, balls, and bodies to direct a fluid, like steam, to specific areas within the valve, increasing fluid velocity and effectively removing residue from hard-to-reach areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external steam purge systems are used to remove residue from valve components, then cleaning capability is improved, but accessibility to certain components is limited due to space constraints
Solution Approach 1:
The purge system is segmented into multiple independent channels distributed throughout the valve body, stem, ball, and spring components. Each channel independently delivers purge fluid to specific areas, enabling comprehensive cleaning of previously inaccessible components while maintaining compact integration within the valve structure.
Solution Approach 2:
The invention transitions from external purge access to internal three-dimensional purge distribution by embedding channels within the valve body, stem, ball, and spring. This multi-dimensional internal network delivers purge fluid to all components from multiple directions, overcoming the limited external access points.
2Reliability
If purge fluid is delivered through external systems, then residue removal is achieved, but fluid velocity is insufficient to effectively clean hard-to-reach areas
Solution Approach 1:
The channel cross-sectional areas are optimized at different locations to control fluid velocity locally. Channels have smaller cross-sectional areas near discharge points to increase fluid velocity for effective residue removal, while maintaining adequate flow rates from larger upstream channels. This local optimization ensures high-velocity purge fluid reaches all components including hard-to-access areas.
Solution Approach 2:
The invention changes the physical parameters of the purge fluid delivery system by varying channel cross-sectional areas, lengths, and configurations throughout the valve structure. These parameter changes optimize fluid velocity and pressure distribution to ensure effective residue removal from all components while maintaining system compactness.
3Reliability
If multiple purge channels are added to reach all components, then cleaning coverage is improved, but device complexity increases
Solution Approach 1:
The purge channels serve multiple functions simultaneously: they deliver purge fluid to various components, provide structural integration within the valve assembly, and optimize fluid distribution through their geometric configurations. This multi-functionality reduces the need for separate dedicated purge systems for each component, thereby limiting overall complexity increase.
Solution Approach 2:
The invention merges the purge fluid delivery function with the existing valve component structures by integrating channels into the valve body, stem, ball, and spring. This consolidation eliminates the need for separate external purge systems and reduces the number of discrete parts, thereby limiting complexity increase despite improved cleaning coverage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances valve performance by thoroughly cleaning components that were previously inaccessible, reducing the torque required to move the stem and preventing residue buildup, thereby improving the valve's operational efficiency.
Implementation Method 1
a first channel extending through the stem to receive a fluid. The stem has an aperture in fluid communication with the first channel
Implementation Method 2
direct the fluid to one or more components of the fluid valve to remove residue... increasing fluid velocity and effectively removing residue
Data Source
AI summary
Purge apparatus for use with fluid valves are disclosed. An apparatus includes a stem for a fluid valve. The stem has a first channel extending therethrough to receive a fluid. The apparatus also includes an aperture in fluid communication with the first channel and disposed on an outer surface of the stem or a fluid flow control member coupled to the stem. The aperture is to exhaust the fluid from the first channel toward one or more components of the fluid valve to remove residue.